Improvement in lanterns



s. L.BARND0LLAR.

Lanterns.

No.l49,633. 'rmemiApril14,1874;

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UNITED STATES PATE SAMUEL L. BARNDOLLAR, OF PITTSB URG, PENNSYLVANIA.

IMPROVEMENT iN LANTERNS.

Specification forming part of Letters Patent No. 149,633, dated April14, 1874; application filed September 1l, 1873.

To all whom it may concern.'

Be it known that I, SAMUEL L. BAENDOL- LAR, of Pittsburg, in the countyof Allegheny and in the State of Pennsylvania, have invented certain newand useful Improvements in Lanterns; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompany ing drawing and to the letters of referencemarked thereon.

The nature of my invention consists in constructing a lantern with aspring base-holder, by means of which lamp-base is readily attached anddetached, the holder being formed of two springs, soldered at theirlower ends to the cl1imney-base,with a ridge formed in their middle toserve as a catch or lock to unite the lamp-base to the lantern byprojecting through an opening in the chimneyfbase into a groove in thelamp-base, and the upper ends ot' these springs bent so as to projectthrough an opening in the chimney-base, and serve as the means by whichto operate the springs from the outside of the lantern, as will morefully appear below.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

VIn the drawings, Figure l is a vertical section, showing my invention.Fig. 2 is a detail view of the same.

A is the lamp 5 B, the base, to which the F is the top; E, the guard; D,the glass chimney. a is a groove on the inner face of the base, andextending completely around it. C is the chimney-base, having two squareopenings, c, on two ot' its op posite sides. One side is shown in Fig.2. The chimney D rests upon this base, and the guard E is rigidlyattached to it also. b are the springs forming the base-holder, andeaclris attached, by soldering or other means, to the chimney-base (l, asshown in Fig. l. The springs b are bent in the peculiar form shown in l,so that'when they are attached to base U the ridge or corrugation e ofeach will project through lower opening c in base C, (see Fig. 2,) so asto catch in the groove a, as shown in Fig. l, and the upper loose end orthumb-piece d of each spring will protrude through the upper opening c.

By pressing the thumb-piece d of each spring b, the ridges c are forcedin toward lamp A,

and clear out of the groove a. The upper part of the lantern can now beremoved. By simply setting the chimney-base C within the base B, andforcing base C downward, the springs b automatically act so as to throwtheir ridges e into the groove a, and so connect the base and upper partof the lantern.

It will be noticed that the spring-catches b b are secured entirelywithin the chimney-base C, (excepting thumb-pieces 61,) and it slideswithin base B when the lantern is in use. The springs b are thusadvantageously defended by the thickness of these two bases C and B. Mymode of constructing the spring-catches b with the ridge c near to theend of the spring, where it is soldered, enables me to have a muchstronger spring to lock the lamp-base to the upper part of the lanternthan if the ridge c were at the top of the spring, where thethumbpieces. are. The thumb-pieces, acting upon the top of the springs,have the advantage of a long leverage on the springs, and so enablesthem to be easily and quickly operated.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

4l. The spring baseholder formed of springcatches b b, constructed, asshown, by forming on each spring a ridge, e, sufficiently high toproject through opening c in chimney-base G and catch in the groove a,of base B, the lower end of each spring soldered to base C,and the upperend of each bent into the thumb-piece d, to project through opening c inbase G.

2. The groove a formed in the base B, as described, in combination withspring-catches b b and chimney-base C, with openings c, con structed andoperating substantially in the manner and for the purpose set forth.

In testimony that I claim the above-described certain new and usefulimprovements in lanterns I have hereunto signed my name this 26th day ofAugust, 187 3.

SAMUEL L. BAENDOLLAE.

Witnesses:

AUGUST AMMON, J. M. KENNEY.

EEIOE.

